CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction
Wang, R; Han, JC; Xu, P; Gao, TL; Zhong, J; Wang, XJ; Zhang, XH; Li, ZJ; Xu, LL; Song, B
2020
Source PublicationADVANCED SCIENCE
ISSN2198-3844
Volume7Issue:9Pages:-
Subtype期刊论文
AbstractRhenium dichalcogenides (ReX2, X = S or Se) are catalysts that have great promise for the photoenhanced hydrogen evolution reaction (PE-HER) because of their unique physiochemical properties. However, the catalytic performance is still restricted by their low concentration of electrocatalytic activity sites and poor injection of hot electrons. Herein, dual-enhancement in ReSe2 nanosheets (NSs) with high concentration of active sites and efficient use of hot electrons is simultaneously achieved with moderate Mo doping. Contributions from exposed catalytically active sites, improved electrical conductivity, and enhanced solar spectral response are systematically investigated. Superior PE-HER catalytical performance is obtained in Re0.94Mo0.06Se2, which has more catalytically active sites and optimized band structure than other Re1-xMoxSe2 samples. Here, it is demonstrated that only doping can reduce the overpotential (eta(10)) from 239 to 174 mV at -10 mA cm(-2) (Delta 1 eta(10) = 65 mV). Then, eta(10) is further improved to 137 mV under simulated AM 1.5 sun illumination (Delta 2 eta(10) = 37 mV). The total improvement (Delta eta(10)) toward PE-HER is 102 mV (Delta 1 eta(10) + Delta 2 eta(10) = 102 mV) in optimal Re0.94Mo0.06Se2. This work presents a new perspective for researching high-efficiency photoenhanced HER ReSe2-based electrocatalysts and other layered transition metal dichalcogenides.
KeywordCATALYTIC-ACTIVITY SULFUR VACANCIES MOS2 NANOSHEETS PHASE ELECTROCATALYSTS IDENTIFICATION GENERATION NANORODS SITES
DOI10.1002/advs.202000216
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32814
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150001, Peoples R China
2.Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Peoples R China
3.Heilongjiang Acad Sci, Inst Petrochem, Harbin 150040, Peoples R China
4.Soochow Univ, Inst Funct Nano & Soft Mat, Suzhou 215123, Jiangsu, Peoples R China
5.Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
6.Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China
7.Harbin Normal Univ, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Sch Phys & Elect Engn, Harbin 150025, Peoples R China
Recommended Citation
GB/T 7714
Wang, R,Han, JC,Xu, P,et al. Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction[J]. ADVANCED SCIENCE,2020,7(9):-.
APA Wang, R.,Han, JC.,Xu, P.,Gao, TL.,Zhong, J.,...&Song, B.(2020).Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction.ADVANCED SCIENCE,7(9),-.
MLA Wang, R,et al."Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction".ADVANCED SCIENCE 7.9(2020):-.
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